RemNum 〜 数字を暗記するだけのアプリ vs Akoustik

This is an app that only memorizes numbers. This app displays numbers one character at a time in order, so all you have to do is memorize and enter them. Use it for memory training.

Akoustik is a sound-memory game: listen to a growing sequence of tiles, then tap them back in the same order. Simple to learn, genuinely hard to master — and it comes in six different flavors. CLASSIC Watch the sequence grow one tile at a time. How far can you get before your memory breaks? DAILY CHALLENGE The same sequence for everyone, every day. Compare your run against the world. CHALLENGES Send a sequence to a friend and see who remembers it better — real player-vs-player, not just a leaderboard. PITCH MATCH No visual sequence this time — just your ears. Pick the tile that sounds different, across three difficulty levels, with its own leaderboard. SOUND CREATOR Build your own tune out of the game's tiles and share it. DUEL Head-to-head, unlimited replays — just you, an opponent, and a sequence that keeps growing. Sign in with Google to keep your progress safe across reinstalls and appear on the public leaderboards, or just play anonymously — it's entirely optional. Akoustik is free, supported by optional rewarded ads that never interrupt play unless you choose to watch one.